My mac won't start up- hardware error code

Recently my computer was running slow and was constantly freezing.  My first thoughts were to clear some of my data off my computer.  After emptying the trash of unwanted photos/videos/ documents the computer froze for 2+ minutes.  At this point I forced a restart by holding down the power button.  Since then, my computer will not start.  It stops @ the apple logo with spinning grey wheel and will not go any further.  I have tried the install disk which is not working-- while holding C during start up the disk just ends up ejecting.  I have also tried safe booting which will display a status bar under the apple icon and the grey spinning wheel but nothing else happens.  Last night I ran an extended hardware test and received a hardware error code of 4M0T/4/40000003:HDD-1296. 
Any suggestions?

The hard drive needs replacing.  

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